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Author Tezuka D., Matsuura H., Saburi W., Mori H., Imai R.
Title A Ubiquitously Expressed UDP-Glucosyltransferase, <i>UGT74J1</i>, Controls Basal Salicylic Acid Levels in Rice.
Abstract:
Salicylic acid (SA) is a phytohormone that regulates a variety of physiological and developmental processes, including disease resistance. SA is a key signaling component in the immune response of many plant species. However, the mechanism underlying SA-mediated immunity is obscure in rice (<i>Oryza sativa</i>). Prior analysis revealed a correlation between basal SA level and blast resistance in a range of rice varieties. This suggested that resistance might be improved by increasing basal SA level. Here, we identified a novel UDP-Glucosyltransferase gene, <i>UGT74J1</i>, which is expressed ubiquitously throughout plant development. Mutants of <i>UGT74J1</i> generated by genome editing accumulated high levels of SA under non-stressed conditions, indicating that <i>UGT74J1</i> is a key enzyme for SA homeostasis in rice. Microarray analysis revealed that the <i>ugt74j1</i> mutants constitutively overexpressed a set of pathogenesis-related (PR) genes. An inoculation assay demonstrated that these mutants had increased resistance against rice blast, but they also exhibited stunted growth phenotypes. To our knowledge, this is the first report of a rice mutant displaying SA overaccumulation.
Journal Plants (Basel)
Country Japan
Volume 10(9)
Pages
Year 2021
PubMed ID 34579409
PubMed Central ID 8469147
DOI 10.3390/plants10091875
URL -
Relation
Gene EDR1 IAGLU SGT UGT74H1 UGT74H4 UGT74J1 UGT74J13 UGT74J14 UGT74J2 UGT74J3 UGT74J5 UGT75E1 UGT75F2 UGT75G1 UGT75H1 UGT75J1 UGT75K1 UGT75K2 UGT84C1 UGT84E1 UGT84E2 _
INSD -
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain 		-
Stages in Each Organ
- Muant Lines (Gene) 		-
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -
/rice/oryzabase